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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 940 · 40 questions
TalentJR

How to do it in your head (Look first): A 9, 19 or 99 → round and adjust. Two close numbers → count up (or near doubles when adding). × or ÷ by 4 or 8 → double or halve; other sums → split into tens and ones.

NameDateTime takenScore ___ / 40
  1. 1.Half of 190 =
  2. 2.17² =
  3. 3.7 + ? = 10
  4. 4.68 ÷ 4 =
  5. 5.Half of 70 =
  6. 6.204 ÷ 4 =
  7. 7.What is the remainder when 93 is divided by 6?
  8. 8.Double 49 =
  9. 9.50 + ? = 100
  10. 10.You buy a pencil box for ₹340 and pay with a ₹500 note. How much change do you get, in rupees?
  11. 11.208 ÷ 4 =
  12. 12.17 × 4 =
  13. 13.What is the remainder when 138 is divided by 9?
  14. 14.36 laddoos are packed in boxes of 8. How many laddoos are left over?
  15. 15.81 − 12 =
  16. 16.39 × 6 =
  17. 17.104 ÷ 8 =
  18. 18.511 + 99 =
  19. 19.78 + 8 =
  20. 20.68 − 36 =
  21. 21.67 + 48 =
  22. 22.130 − 86 =
  23. 23.74 + 38 =
  24. 24.67 + 8 =
  25. 25.30 + 29 =
  26. 26.5 + ? = 10
  27. 27.110 − 70 =
  28. 28.Best estimate of 429 + 303? (a) 900 (b) 700 (c) 500
  29. 29.29 + 24 =
  30. 30.A train leaves at 8:00 and reaches the next city at 8:25. How many minutes is the journey?
  31. 31.198 ÷ 6 =
  32. 32.26 × 3 =
  33. 33.5% of ₹690 =
  34. 34.28 + 27 =
  35. 35.144 ÷ 8 =
  36. 36.38 × 8 =
  37. 37.683 − 99 =
  38. 38.You buy a storybook for ₹28 and pay with a ₹100 note. How much change do you get, in rupees?
  39. 39.862 − 99 =
  40. 40.344 ÷ 8 =

Answer key

  1. 95
  2. 289
  3. 3
  4. 17
  5. 35
  6. 51
  7. 3
  8. 98
  9. 50
  10. 160
  11. 52
  12. 68
  13. 3
  14. 4
  15. 69
  16. 234
  17. 13
  18. 610
  19. 86
  20. 32
  21. 115
  22. 44
  23. 112
  24. 75
  25. 59
  26. 5
  27. 40
  28. 700
  29. 53
  30. 25
  31. 33
  32. 78
  33. 34.5
  34. 55
  35. 18
  36. 304
  37. 584
  38. 72
  39. 763
  40. 43

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